FunctionCodes (ENUM)

TYPE FunctionCodes :

MODBUS function codes.

Attributes:
qualified_only
InOut:

Name

Initial

Comment

InvalidFunctionCode

0

ReadCoils

1

ReadDiscreteInputs

2

ReadHoldingRegisters

3

ReadInputRegisters

4

WriteSingleCoil

5

WriteSingleRegister

6

ReadExceptionStatus

7

serial line only

Diagnostics

8

serial line only

GetCommEventCounter

11

serial line only

GetCommEventLog

12

serial line only

WriteMultipleCoils

15

WriteMultipleRegisters

16

ReportServerID

17

serial line only

ReadFileRecord

20

WriteFileRecord

21

MaskWriteRegister

22

ReadWriteMultipleRegisters

23

ReadFifoQueue

24

EncapsulatedInterfaceTransport

43